Stable nanopigmented sunscreen/cosmetic compositions
AssigneeL'oreal
InventorsDelphine Allard, Jean-Marc Ascione
Life of this patent
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AssigneeL'oreal
InventorsDelphine Allard, Jean-Marc Ascione
Estimating the term…
Stable and homogeneous, topically applicable sunscreen/cosmetic compositions well suited for the photoprotection of human skin and/or hair against the damaging effects of UV-A and/or UV-B irradiation, particularly solar radiation, and which display excellent transparency on the skin, comprise a storage-stable, ultrafine oil-in-water emulsion resistant to phase separation/settling, of a photoprotecting effective amount of homogeneously and finely dispersed particulates of at least one inorganic nanopigment which comprises a metal oxide, for example titanium dioxide, as well as a stabilizing amount of at least one mixed silicate which comprises alkali and/or alkaline earth metals, and further wherein the average particle size of the globules comprising the oily phase of the emulsion characteristically ranges from 100 nm to 1,000 nm.
A topically applicable, stable sunscreen/cosmetic composition adopted for the photoprotection of human skin and/or hair, comprising a storage-stable, ultrafine oil-in-water emulsion of a photoprotecting effective amount of homogeneously and finely dispersed particulates of at least one inorganic nanopigment which comprises a metal oxide, and a stabilizing amount of at least one mixed silicate which comprises alkali and/or alkaline earth metals wherein the average particle size of the globules comprising the oily phase of said emulsion ranges from 100 nm to 1000 nm.
Dependencies are inferred from the claim text.